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<table border=1>
<caption align="top"> STM topic labels and associated topwords in policy-relevant article abstracts </caption>
<tr> <th> Topic </th> <th> Topic prevalence </th> <th> Words with highest probabilities </th>  </tr>
  <tr> <td> Renewable Energy </td> <td> 14.3% </td> <td> electricity, energy, cost, costs, scenarios, technologies, renewable, power, potential, scenario </td> </tr>
  <tr> <td> Implementation </td> <td> 14.0% </td> <td> energy, policy, development, local, research, policies, new, political, social, transition </td> </tr>
  <tr> <td> Sustainability </td> <td> 11.4% </td> <td> sustainability, sustainable, environmental, framework, research, assessment, performance, process, management, indicators </td> </tr>
  <tr> <td> Energy Systems </td> <td> 11.2% </td> <td> system, power, energy, optimal, optimization, network, operation, systems, load, control </td> </tr>
  <tr> <td> Economy </td> <td> 10.1% </td> <td> energy, countries, co2_emissions, energy_consumption, emissions, effects, consumption, economic_growth, oil, growth </td> </tr>
  <tr> <td> Emissions </td> <td> 9.2% </td> <td> china, carbon, green, policy, development, environmental, china's, industry, efficiency, carbon_emissions </td> </tr>
  <tr> <td> Biomass </td> <td> 8.0% </td> <td> production, biomass, waste, oil, process, potential, co2, fuel, biogas, bioenergy </td> </tr>
  <tr> <td> Ecology </td> <td> 7.7% </td> <td> water, urban, land, cities, spatial, areas, area, emissions, climate, regions </td> </tr>
  <tr> <td> Consumers </td> <td> 7.4% </td> <td> environmental, social, public, factors, consumers, adoption, companies, practices, green, survey </td> </tr>
  <tr> <td> Household Energy </td> <td> 6.7% </td> <td> energy, building, households, buildings, household, solar, energy_efficiency, residential, heat, heating </td> </tr>
   </table>
